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Quercetin-3-O-rutinoside (rutin), quercetin-3-O-glucoside (isoquercetin) and quercetin have shown antioxidant, cytoprotective, vasoprotective, antiproliferative and antiinflammatory properties. The aim of this work was to determine the conversion of rutin to isoquercetin and quercetin during the production of poly(l-lactic acid) films with potential to deliver these flavonoids toward tissues, pharmaceuticals...
Bilayer functional film made of poly(lactic acid), PLA incorporated with 2 wt.% marigold flower extract containing astaxanthin (PLA2M) was fabricated by using a blown-extrusion process. The release of astaxanthin, a keto-carotenoid antioxidant, from the PLA-based film towards 95% ethanol (ETOH) was investigated at 30 and 40 °C. PLA and PLA2M that had been in contact with 95% ETOH at 30 and 40 °C were...
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